E. K. Karkaryan

activity

20212026

most cited

pp

scattering at the LHC with the lepton pair production and one proton tagging

12 citations · 31 across the 11 of their papers we have counts for

collaborators

11 papers

hep-ph2026

Sgoldstino Phenomenology at SND@HL-LHC

D. Kalashnikov, E. K. Karkaryan

We study the phenomenology of light scalar sgoldstinos, with masses from the dimuon threshold up to a few GeV, focusing on their production and detection prospects at the SND@HL-LH…

hep-ph2025

Does the existence of $f_{0}$ meson enlarge the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay probability?

E. K. Karkaryan, V. F. Obraztsov, M. I. Vysotsky

We estimate a possible contribution of the two-pion system $f_{0} (500)$ wide resonance to the decay probability of the super rare decay $K^{+} \to 3 π^{0} e^{+} ν$ . We vary the width of the…

hep-ph2024★ 3 cited

On the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay

E. K. Karkaryan, K. V. Kiselev, V. F. Obraztsov +2

The OKA Collaboration has obtained a new upper limit on the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay probability which is 65 times lower than the one currently listed by PDG. However it is…

hep-ph2024

On the determination of the relative probability of $Υ (5 S) \to B_{s}^{()} B ˉ_{s}^{()}$ decays

A. E. Bondar, E. K. Karkaryan, A. A. Simovonian +1

Semileptonic decays of the $B B$ pairs produced in the $Υ (5 S)$ can be used to find the relative probability of $Υ (5 S) \to B_{s} B_{s}$ decay…

hep-ph2023

On production of heavy charged particles in $γ γ$ fusion at planned $pp$ colliders

S. I. Godunov, E. K. Karkaryan, V. A. Novikov +3

Production of heavy fermions in ultraperipheral collisions ( $pp \to p + γ γ + p \to p + χ^{+} χ^{-} + p$ ) and the semiexclusive reaction ( $pp \to p + γ γ^{*} + X \to p + χ^{+} χ^{-} + X$ ) is considered.…

hep-ph2023★ 1 cited

libepa -- a C++/Python library for calculations of cross sections of ultraperipheral collisions

E. V. Zhemchugov, S. I. Godunov, E. K. Karkaryan +3

The library provides a set of C++/Python functions for computing cross sections of ultraperipheral collisions of high energy particles under the equivalent photons approximation. C…

hep-ph2023

Weak interaction corrections to muon pair production via the photon fusion at the LHC

S. I. Godunov, E. K. Karkaryan, V. A. Novikov +3

Analytical formulas describing the correction due to the $Z$ boson exchange to the cross section of the reaction $pp \to p μ^{+} μ^{-} X$ are presented. When the invariant mass of…

hep-ph2022★ 12 cited

$pp$ scattering at the LHC with the lepton pair production and one proton tagging

S. I. Godunov, E. K. Karkaryan, V. A. Novikov +3

Analytical formulas for the cross section of the reaction $pp \to p + ℓ^{+} ℓ^{-} + X$ are presented. Fiducial cross sections are compared with those measured recently by the ATL…

hep-ph2021

CP-violation in oscillations of three neutrino generations: the case of degenerate masses

E. K. Karkaryan

CP-symmetry violates in oscillations of neutrinos in vacuum in presence of three generations. In this case there is an inherent complex phase in PMNS-matrix. When any two neutrino…

hep-ph2021★ 9 cited

Forward proton scattering in association with muon pair production via the photon fusion mechanism at the LHC

S. I. Godunov, E. K. Karkaryan, V. A. Novikov +3

Dilepton production in proton-proton collision through $γ γ$ -fusion with one proton scattered elastically while the second produces a hadron jet is considered. Semi-analytical formu…

hep-ph2021★ 6 cited

LHC as a photon-photon collider: bounds on $Γ_{X \to γ γ}$

S. I. Godunov, E. K. Karkaryan, V. A. Novikov +3

In the relatively recent CMS data, there is a hint on the existence of a resonance with the mass 28 GeV coupling to muons. Such a resonance should also couple to photons through th…

Sgoldstino Phenomenology at SND@HL-LHC

Does the existence of f0​ meson enlarge the K+→π0π0π0e+ν decay probability?

On the K+→π0π0π0e+ν decay

On the determination of the relative probability of Υ(5S)→Bs(∗)​Bˉs(∗)​ decays

On production of heavy charged particles in γγ fusion at planned pp colliders

libepa -- a C++/Python library for calculations of cross sections of ultraperipheral collisions

Weak interaction corrections to muon pair production via the photon fusion at the LHC

pp scattering at the LHC with the lepton pair production and one proton tagging

CP-violation in oscillations of three neutrino generations: the case of degenerate masses

Forward proton scattering in association with muon pair production via the photon fusion mechanism at the LHC

LHC as a photon-photon collider: bounds on ΓX→γγ​

Does the existence of $f_{0}$ meson enlarge the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay probability?

On the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay

On the determination of the relative probability of $Υ (5 S) \to B_{s}^{()} B ˉ_{s}^{()}$ decays

On production of heavy charged particles in $γ γ$ fusion at planned $pp$ colliders

$pp$ scattering at the LHC with the lepton pair production and one proton tagging

LHC as a photon-photon collider: bounds on $Γ_{X \to γ γ}$